1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 27509:2012Petroleum and natural gas industries Compact flanged connections with IX seal ringCopyright European Committee for Standardization Provided by IHS under licen
2、se with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 27509:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 27509:2012.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i
3、 t t e e P S E / 1 7 / - / 6 , P r o c e s s i n g e q u i p m e n t a n d systems for petroleum and natural gas industries.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a
4、 contract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013.ISBN 978 0 580 61019 6 ICS 23.040.60 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published unde
5、r the authority of the Standards Policy and Strategy Committee on 31 January 2013.Amendments issued since publicationDate T e x t a f f e c t e dCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without licens
6、e from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 27509 December 2012 ICS 23.040.60 English Version Petroleum and natural gas industries - Compact flanged connections with IX seal ring (ISO 27509:2012) Industries du ptrole et du gaz naturel - Raccordements brides compactes avec
7、 bague dtanchit IX (ISO 27509:2012) Erdl- und Erdgasindustrie - Kompakte Flanschverbindungen mit IX Dichtungsring (ISO 27509:2012) This European Standard was approved by CEN on 18 December 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions
8、for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in th
9、ree official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards b
10、odies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
11、 Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CE
12、N national Members. Ref. No. EN ISO 27509:2012: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 27509:2012 EN ISO 27509:2012 (E) 3 Foreword This document (EN ISO 27509
13、:2012) has been prepared by Technical Committee ISO/TC 67 “Materials,equipment and offshore structures for petroleum, petrochemical and natural gas industries” in collaborationwith Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for petroleum,petrochemical and natural gas
14、 industries” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by June 2013, and conflicting national standards shall be withdrawn atthe latest by June 2013. A
15、ttention is drawn to the possibility that some of the elements of this document may be the subject of patentrights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organisations
16、of the followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, CzechRepublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Nethe
17、rlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 27509:2012 has been approved by CEN as a EN ISO 27509:2012 without any modification. Copyright European Committee for Standardization Provided b
18、y IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 27509:2012ISO 27509:2012(E) ISO 2012 All rights reserved iiiContents Page Foreword .v Introductionvi 1 Scope1 2 Normative references1 3 Terms, definitions, symbols and abbreviated
19、 terms .2 3.1 Terms and definitions .2 3.2 Symbols2 3.3 Abbreviated terms .4 4 Design.5 4.1 General .5 4.2 Design principles.5 4.3 Assembly requirements6 4.4 Standard components.7 4.5 Units of measurements.8 4.6 Rounding8 4.7 Compliance with piping design codes 8 4.8 Compliance to this International
20、 Standard.8 5 Designation 8 5.1 Designation of flanges8 5.2 Designation of seal rings9 6 Materials .9 6.1 General .9 6.2 Flange materials 9 6.3 Bolting materials .10 6.4 Seal ring materials.11 7 Strength, pressure/temperature ratings and leak tightness.11 7.1 General .11 7.2 Pressure/temperature rat
21、ings 12 7.3 Pressure testing and leak tightness12 8 Dimensions of flanges 13 8.1 General .13 8.2 Weld neck (WN) dimensions 14 8.3 Blind flange (BL) dimensions.21 8.4 Integral flange (IF) dimensions 24 8.5 Rigid interface (RI) dimensions .31 8.6 Dimensions of paddle blanks (PB) and paddle spacers (PS
22、) .34 8.7 Handle and lifting lugs37 8.8 Dimensions of orifice spacers (OS).38 8.9 Dimensions of reducing threaded flanges (RTs) .39 8.10 Auxiliary connections .40 8.11 Flange tolerances 40 8.12 Surface finish.42 9 Marking of flanges.42 9.1 Flanges other than integral flanges.42 9.2 Manufacturers nam
23、e or trademark .43 9.3 Nominal size.43 9.4 Pressure class designation43 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 27509:2012ISO 27509:2012(E) iv ISO 2012 All righ
24、ts reserved9.5 Pipe dimensions 43 9.6 Material designation 43 9.7 Identification of internally threaded flanges .43 9.8 Material traceability .44 9.9 Marking examples44 9.10 Stamping.44 10 Dimensions of seal rings 44 11 Inspection and testing of seal rings 48 12 Coating and colour coding .48 13 Mark
25、ing of seal rings.48 14 Quality management systems48 15 Bolt dimensions and masses .48 Annex A (normative) Pressure temperature ratings and shear capacity of seal rings49 Annex B (informative) Integral flange angle selection 54 Annex C (informative) Quality management system .64 Annex D (normative)
26、Bolt dimensions and masses 65 Annex E (informative) Handling, installation, assembly and repair of flanges.71 Annex F (informative) Mass of flanges84 Annex G (informative) Metric bolting 95 Annex H (informative) Additional information on bibliographical references 97 Bibliography 98 Copyright Europe
27、an Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 27509:2012ISO 27509:2012(E) ISO 2012 All rights reserved vForeword ISO (the International Organization for Standardization) is a worldwi
28、de federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on tha
29、t committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in a
30、ccordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard re
31、quires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 27509 was prepared by Techn
32、ical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 6, Processing equipment and systems. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or
33、 networking permitted without license from IHS-,-,-BS EN ISO 27509:2012ISO 27509:2012(E) vi ISO 2012 All rights reservedIntroduction This International Standard, which is based on NORSOK L-00536, has been developed to provide a standard for compact flanged connections (CFCs) that constitutes an alte
34、rnative to conventional flanges as specified in ASME standards, European Standards and other International Standards, with reduced mass and smaller overall dimensions, as well as increased reliability in leak tightness by means of its inherent design features and make up procedures. CFCs can also pr
35、ovide an alternative to other types of clamp and hub type mechanical connectors. The use of load carrying sealing elements, traditionally referred to as “gaskets“, does not comply with the fundamental requirements of this International Standard. This International Standard has been developed for use
36、 in process piping systems, which are designed according to codes for pressure piping, e.g. ASME B31.3. See 4.7 for more details. The flange designs have been selected to achieve a minimum safety factor of 2,0 when subjected to a design pressure equal to ASME B16.5 pressure temperature ratings withi
37、n the temperature limits of this International Standard. The main body of this International Standard contains all necessary information on how to manufacture and supply flange and seal ring materials, such as flange dimensions and material requirements; seal ring dimensions and material requirement
38、s; bolting dimensions and material requirements; requirements to tolerances and surface finish; requirements to designation and marking of finished products. Normative annexes A and D cover the following topics: structural capacity equations for flange assemblies; bolt dimensions and masses. Informa
39、tive annexes B, C, E, F and G cover the following topics: how to apply the flanges to special geometries of valves and equipment nozzles; quality management; installation and assembly instructions, and guidelines on how to repair damage and irregularities on sealing surfaces; masses of all standard
40、components; suitable dimensions of alternative metric bolting. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 27509:2012ISO 27509:2012(E) ISO 2012 All rights reserved
41、viiFor the purposes of this International Standard, the following verbal forms apply: “shall“ indicates a requirement strictly to be followed in order to conform to this International Standard and from which no deviation is permitted, unless accepted by all involved parties; “should“ indicates that
42、among several possibilities one is recommended as particularly suitable, without mentioning or excluding others, or that a certain course of action is preferred but not necessarily required; “may“ indicates a course of action permissible within the limits of this International Standard; “can“ is use
43、d for statements of possibility and capability, whether material, physical or casual. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 27509:2012Copyright European Commi
44、ttee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 27509:2012INTERNATIONAL STANDARD ISO 27509:2012(E) ISO 2012 All rights reserved 1Petroleum and natural gas industries Compact flanged connection
45、s with IX seal ring 1 Scope This International Standard specifies detailed manufacturing requirements for circular steel and nickel alloy compact flanged connections and associated seal rings, for designated pressures and temperatures in class designations CL 150 (PN 20) to CL 1500 (PN 260) for nomi
46、nal sizes from DN 15 (NPS ) to DN 1200 (NPS 48), and for CL 2500 (PN 420) for nominal sizes from DN 15 (NPS ) to DN 600 (NPS 24). NOTE NPS is in accordance with ASME B36.10M and ASME B36.19M. This International Standard is applicable to welding neck flanges, blind flanges, paddle spacers and spacer
47、blinds (paddle blanks), valve/equipment integral flanges, orifice spacers, reducing threaded flanges and rigid interfaces for use in process piping for the petroleum, petrochemical and natural gas industries. This International Standard is applicable within a temperature range from 196 C to +250 C.
48、This International standard is not applicable for external pressure. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2768-1, General tolerances Part 1: Tolerances for linear and angular dimensions without individual tolerance indications ISO 4288, Geometric Product Specifications (GPS) Su
